Homework Help: physics

Posted by julia on Friday, October 8, 2010 at 12:31am.

A man pulls a crate of mass 61.0 kg across a level floor. He pulls with a force of 178.0 N at an angle of 20.0� above the horizontal. When the crate is moving, the frictional force between the floor and the crate has a magnitude of 124.0 N.

If the crate starts from rest, how fast will it be moving after the man has pulled it a distance of 2.90 m?

physics - drwls, Friday, October 8, 2010 at 1:27am
Calculate the acceleration a using
F = M a a = F/M

F = 178.0 cos 20 - 124.0 N

The velocity after moving a distance X is sqrt(2aX)

Answer this Question

Related Questions

physics - A man pulls a crate of mass 53.0 kg across a level floor. He pulls ...
physics - A man pulls a crate of mass 63.0 kg across a level floor. He pulls ...
Physics - A worker applies a constant force of magnitude F = 339 N on a crate in...
Physics - A man pulls a 50 kg box with an acceleration of 2m/s^2 across the ...
Physics - To move a large crate across a rough floor, you push on it with a ...
physics - To move a large crate across a rough floor, you push on it with a ...
Physics - To move a large crate across a rough floor, you push on it with a ...
Physics - A man pulls a 10-kg box across a smooth floor with a force of 71 ...
Physics - 1. To move a large crate across a rough floor, you push on it with a ...
Physics - A warehouse employee used a cable to pull a 125 kg crate across the ...

For Further Reading

First Name:
School Subject:
Answer: